<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref, watch } from 'vue'
import { Value } from 'sass'

import {userRegisterService,userLoginService} from '@/api/user.js'
import {useUserStore} from '@/stores'
import {useRouter} from 'vue-router'
const isRegister = ref(false)

const form =ref()

const userStore =useUserStore()

// 1.定义form 的数据对象
const formModel=ref({
    username:'',
    password:'',
    repassword:''
})

// 2.定义规则
const rules={
    username:[
        {required: true, message: '请输入用户名', trigger: 'blur'},
        {min:5,max:10,message: '用户名必须是 5-10 位的字符', trigger: 'blur'}
    ],
    password:[
        {required: true, message: '请输入密码', trigger: 'blur'},
        { pattern: /^\S{6,15}$/,
          message:'密码必须 6-15 位的非空字符',
          trigger:'blur'
        }
    ],
    repassword:[
        {required: true, message: '请输入密码', trigger: 'blur'},
        { pattern: /^\S{6,15}$/,
          message:'密码必须 6-15 位的非空字符',
          trigger:'blur'
        },
        {
            validator:(rule,value,callback)=>{
                //盘点 value和当前 form 中收集的 password 是否一致
                if(value!==formModel.value.password)
            {
                callback(new Error('两次输入密码不一致'))
            } else{
                callback()  //校验成功,也要 callback
            }
            }
        }
    ],
}

const register=async()=>{
    //注册成功之前,先进行校验,校验成功之后->请求,校验失败->自动提示
    await form.value.validate()
    //传入一个对象
    await userRegisterService(formModel.value)
    ElMessage.success('注册成功')
    console.log('开始注册请求')
    isRegister.value=false
}

const router =useRouter()
const login=async()=>{
    //注册成功之前,先进行校验,校验成功之后->请求,校验失败->自动提示
    await form.value.validate()
    // 传入一个对象,拿到传回的值,里面含有 token 需要拿到里面去,存到 store 里
    const res= await userLoginService(formModel.value)
    userStore.setToken(res.data.token)
    ElMessage.success('登入成功')
    console.log(res)
    router.push('/')
}


//切换的时候,重置表单内容
watch(isRegister,()=>{
    formModel.value={
     username:'',
    password:'',
    repassword:''
    }
})
</script>

<template>
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      
      <!-- 这是注册表单 -->
      <el-form   :model="formModel"  :rules="rules" ref="form" size="large" autocomplete="off" v-if="isRegister">
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input v-model="formModel.username" :prefix-icon="User" placeholder="请输入用户名"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
          v-model="formModel.password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input
          v-model="formModel.repassword"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入再次密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button class="button" type="primary" auto-insert-space @click="register">
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = false">
            ← 返回
          </el-link>
        </el-form-item>
      </el-form>
       
       <!-- 这是登入表单 -->
      <el-form   ref="form" :model="formModel" :rules="rules" size="large" autocomplete="off" v-else>
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input v-model="formModel.username" :prefix-icon="User" placeholder="请输入用户名"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
          v-model="formModel.password" 
            name="password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <el-form-item>
          <el-button class="button" type="primary" auto-insert-space @click="login"
            >登录</el-button
          >
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = true">
            注册 →
          </el-link>
        </el-form-item>
      </el-form>

    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
.login-page {
  height: 100vh;
  background-color: #fff;
  .bg {
    background: url('@/assets/logo2.png') no-repeat 60% center / 240px auto,
      url('@/assets/login_bg.jpg') no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }
  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;
    .title {
      margin: 0 auto;
    }
    .button {
      width: 100%;
    }
    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>